package com.union.dao;

import java.util.List;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.hibernate.LockMode;
import org.hibernate.Query;
import org.hibernate.SQLQuery;
import org.springframework.context.ApplicationContext;
import org.springframework.orm.hibernate3.support.HibernateDaoSupport;

import com.union.entitybean.PC;

/**
 * A data access object (DAO) providing persistence and search support for PC
 * entities. Transaction control of the save(), update() and delete() operations
 * can directly support Spring container-managed transactions or they can be
 * augmented to handle user-managed Spring transactions. Each of these methods
 * provides additional information for how to configure it for the desired type
 * of transaction control.
 * 
 * @see com.union.entitybean.PC
 * @author MyEclipse Persistence Tools
 */

public class PCDAO extends HibernateDaoSupport {
	private static final Log log = LogFactory.getLog(PCDAO.class);

	// property constants

	protected void initDao() {
		// do nothing
	}

	public void save(PC transientInstance) {
		log.debug("saving PC instance");
		try {
			getHibernateTemplate().save(transientInstance);
			log.debug("save successful");
		} catch (RuntimeException re) {
			log.error("save failed", re);
			throw re;
		}
	}

	public void delete(PC persistentInstance) {
		log.debug("deleting PC instance");
		try {
			getHibernateTemplate().delete(persistentInstance);
			log.debug("delete successful");
		} catch (RuntimeException re) {
			log.error("delete failed", re);
			throw re;
		}
	}

	public void deleteByPersonId(int personId) {
		try {
			String sql = "delete from PC where person.personId = :personId";
			Query query = getSession().createQuery(sql);
			query.setParameter("personId", personId);
			query.executeUpdate();
		} catch (RuntimeException re) {
			throw re;
		}
	}

	public PC findById(java.lang.Integer id) {
		log.debug("getting PC instance with id: " + id);
		try {
			PC instance = (PC) getHibernateTemplate().get("com.test.PC", id);
			return instance;
		} catch (RuntimeException re) {
			log.error("get failed", re);
			throw re;
		}
	}

	public List findByExample(PC instance) {
		log.debug("finding PC instance by example");
		try {
			List results = getHibernateTemplate().findByExample(instance);
			log.debug("find by example successful, result size: "
					+ results.size());
			return results;
		} catch (RuntimeException re) {
			log.error("find by example failed", re);
			throw re;
		}
	}

	public List findByProperty(String propertyName, Object value) {
		log.debug("finding PC instance with property: " + propertyName
				+ ", value: " + value);
		try {
			String queryString = "from PC as model where model." + propertyName
					+ "= ?";
			return getHibernateTemplate().find(queryString, value);
		} catch (RuntimeException re) {
			log.error("find by property name failed", re);
			throw re;
		}
	}

	public List findByPersonId(int personId) {
		try {
			String queryString = "select pc.cateId,cate.cateName "
					+ "from p_c pc,category cate " + "where pc.personId = "
					+ personId + " and cate.cateId = pc.cateId";
			SQLQuery sqlQuery = getSession().createSQLQuery(queryString);
			return sqlQuery.list();
		} catch (RuntimeException re) {
			throw re;
		}
	}

	public List findAll() {
		log.debug("finding all PC instances");
		try {
			String queryString = "from PC";
			return getHibernateTemplate().find(queryString);
		} catch (RuntimeException re) {
			log.error("find all failed", re);
			throw re;
		}
	}

	public PC merge(PC detachedInstance) {
		log.debug("merging PC instance");
		try {
			PC result = (PC) getHibernateTemplate().merge(detachedInstance);
			log.debug("merge successful");
			return result;
		} catch (RuntimeException re) {
			log.error("merge failed", re);
			throw re;
		}
	}

	public void attachDirty(PC instance) {
		log.debug("attaching dirty PC instance");
		try {
			getHibernateTemplate().saveOrUpdate(instance);
			log.debug("attach successful");
		} catch (RuntimeException re) {
			log.error("attach failed", re);
			throw re;
		}
	}

	public void attachClean(PC instance) {
		log.debug("attaching clean PC instance");
		try {
			getHibernateTemplate().lock(instance, LockMode.NONE);
			log.debug("attach successful");
		} catch (RuntimeException re) {
			log.error("attach failed", re);
			throw re;
		}
	}

	public static PCDAO getFromApplicationContext(ApplicationContext ctx) {
		return (PCDAO) ctx.getBean("PCDAO");
	}
}